20568249

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{383}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 35223552

約数和(自身を除く): 14655303

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 243, 351, 383, 459, 663, 1053, 1149, 1377, 1989, 3159, 3447, 4131, 4979, 5967, 6511, 10341, 14937, 17901, 19533, 31023, 44811, 53703, 58599, 84643, 93069, 134433, 175797, 253929, 403299, 527391, 761787, 1209897, 1582173, 2285361, 6856083, 20568249]

約数ペア:

[(1, 20568249), (3, 6856083), (9, 2285361), (13, 1582173), (17, 1209897), (27, 761787), (39, 527391), (51, 403299), (81, 253929), (117, 175797), (153, 134433), (221, 93069), (243, 84643), (351, 58599), (383, 53703), (459, 44811), (663, 31023), (1053, 19533), (1149, 17901), (1377, 14937), (1989, 10341), (3159, 6511), (3447, 5967), (4131, 4979)]